package day03;

public class OperDemo5 {
    public static void main(String[] args) {
        int age = 21;
        //字符串连接运算符 ：+
        System.out.println("age");
        System.out.println(age);
        System.out.println("age=" + age);
        System.out.println("我今年" + age + "岁了");

        String name = "LRX";
        System.out.println("大家好，我叫" + name);
        System.out.println("大家好，我叫" + name + "，今年" + age + "岁了");

        System.out.println(10 + 20 + "" + 30);//3030 String
        System.out.println("" + 10 + 20 + 30);//102030 String
        System.out.println(10 + 20 + 30 + "");//60 String
    }
}
